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Table 2 Analysis of cataract surgeries between urban and suburban areas, 2006 to 2009

From: Four-year analysis of cataract surgery rates in Shanghai, China: a retrospective cross-sectional study

 

District

No. CS

Population

CSR

Surgical methods (%)

VA outcomes

   

million

 

Phaco

ECCE

others

A%

B%

2006

Urban areas

24785

6.50

3813

90.65

8.04

1.31

98.74

86.91

 

Suburban areas

6819

11.65

585

83.10

16.73

0.17

98.00

89.44

2007

Urban areas

27478

6.49

4234

91.08

7.67

1.25

98.41

85.68

 

Suburban areas

7085

12.09

586

90.30

9.60

0.10

97.28

87.41

2008

Urban areas

32131

6.53

4921

94.69

4.34

0.97

97.47

87.91

 

Suburban areas

6617

12.35

536

89.33

10.50

0.17

96.96

88.76

2009

Urban areas

35707

6.53

5468

95.56

3.30

1.14

98.15

87.34

 

Suburban areas

6752

12.68

532

91.63

8.16

0.21

96.59

88.19

  1. Abbreviations used: No. CS the number of cataract surgeries, Phaco phacoemulsification surgeries, ECCE extracapsular cataract extraction surgeries, A% percentage of patients with 1st–3rd postoperative day corrected Snellen visual acuity (VA) ≥ 0.05; B%, percentage of patients with 1st–3rd postoperative day corrected Snellen VA ≥ 0.3.